I've had a 72 240Z and a '74 260Z in the past, and I'm still driving my '73 (manufactured fall '72). The 1973 won't have the crazy bumpers or crazy Hitachi SU's that my 1974 260Z did. I left the original 1973 motor on a stand, and swapped it with a 2.8L from 1982. The Turbo had a higher flow head (P89) that suits triple Webers just fine. Tons of (cheap for now) upgrades available to make it safer/faster, and I can still put it back to stock when the time comes.
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